Plan June 12,13, 2009
-
-
[Friday 6/12 (1700-2400) mjf,dcs]
Gain mapping
- Close bumps as required
- Collect gain map data
Low emittance /xbsm
- Starting with XRAY conditions, measure and correct phase and orbit as required
- Fit orbit to reference butns.121430
(6/9)
with orbit (0:88) = 0.
SET REF_ORBIT_Y(0:88)=0, SET REF_ORBIT_X(0:88) = 0.
- Measure phase,coupling,dispersion, orbit
- Create a cesrv script to fit coupling, eta, and orbit, simultaneously with skew quads and vertical steering (using the correctly modified orbit reference). Udate xray set in route
- Time permitting, fill to 5mA and collect lifetime data. (RU LOG_LIFE_XBSM and note output file name) WARNING: DO NOT FILL TO MORE THAN 5MA/bunch as that would damage a feedback detector.
- The cesr28 program [cesr.gdl.inp]LOG_LIFE_XBSM reads the database every 2 seconds
to collect lifetime and xbsm data
(beam current, lifetime,
centroid, centroid sigma, size, size sigma)
- If the XBSM is delivering numbers, use the LOG_LIFE_XBSM program to collect xbsm data and note output file names. If possible, fill to 5mA single bunch and collect lifetime along with xbsm data at the same time
2.3GeV optics [Saturday 6/13 (0800-1200) dlr]
- Create lattice. Two family sextupoles. cta_2300mev_20090608.lat
- Create 2.3GeV route
- Create LATCHING knob - (Zero skew quad coefficients) /home/dlr/cesrv/lat2lat/cta_2300mev_20090608
- Initial lattice is cta_2085mev_20090516_2fam.lat - Final lattice is cta_2300mev_20090608.lat
- /home/dlr/cesrv/lat2lat/cta_2300mev_20090608/lat2lat_load.com
- Edit for VMS (# -> $ !, fff -> $ fff
- Copy to user$disk:[cesr.dlr.lat2lat]lat2lat_load.com
- Determine range of CSR ENERGY. (Can we get to 2.3GeV?)
- Adjust PNMR parameters
- With stored beam reduce energy (CSR ENERGY) to 2.3GeV. Also LATCHING and
QTUNE
- Correct orbit,phase,coupling at 2.3GeV with respect to cta_2300mev_20090608.lat
- Tune injection
- Document route
- NMR? dipole?